Improvement in machines for sharpening horseshoe-calks



E. GL'EASDN & R. HAMILTON.

Machine for Sharpening Horseshoe-Ualks NO' $9 918 Patented Feb. 16,1875.

WITNESS s M ERASTUS GLEASON AND ROBERT HAMILTON, OF GREENWIGH, NEW YORK.

IMPROVEMENT IN MACHINES FOR SHARPENING HORSESHOE-CALKS.

Specification forming part of Letters Patent No. 159,918, dated February16, 1875; application filed February 6, 1875.

To all whom it may concern:

Be it known that we, ERASTUS GLEASON and ROBERT HAMILTON, of Greenwich,in the county of WVashington and in the State of New York, have inventedcertain new and useful Improvements in Machine for Oalking Horseshoes;and do hereby declare that the following is a full, clear, and exactdescription thereof, reference being had to the accompanying drawingsand to the letters of reference marked thereon, making a part of thisspecification.

The nature of our'invention consists in the construction of a machinefor calhing horseshoes, as will be hereinafter more fully set forth.

To enable others skilled in the art to construct and use the same, wewill proceed to more specifically describe it, referring to the annexeddrawings making a part of this specification, in which- Figure 1represents a perspective view of the entire machine, and Fig. 2 avertical sec tion of the outward standard and die.

A represents a suitable table, upon which are upwardly extended twostationary standards, B B, a suitable distance apart. The top of each ofthese standards forms a jaw. The standard B is a little higher than thestandard B proper. The inner face I) of the standard B is straight, andfrom this face is an incline, b, as shown in Figs. 1 and 2. Upon the topof the shorter stationary standard B is placed a movable die or jaw O.This jaw has a square face, a, and is movable forward and backward uponits standard. The standard has a dovetailed projection, and the die 0 adovetailed recess, or vice versa, so that the die cannot move upward outof place. Extending forward from the standard B is a table or support,D. Upon this support, at m, is pivoted a cam, E, having a handle, E. Arim, d, is formed upon the top of this camlever, and a connection ismade between the cam-lever and the movable die 0 by means of a strap, 6,which may either have a frictionroller ora stud on its end to engageagainst the rim (1, so that the die can be moved forward or retractedrearward on a horizontal line by turning the handle either one way orthe other. The top of the die 0 and the top of The latter one The thestandard B are both flat. is provided with a V-shaped groove, 0.

standards may be provided with grooves for the insertion of removabledies of any shape.

In operation the die 0 is drawn rearward by the cam, and the horseshoeto be calked (whether an old or a new one) is placed be tween the jaws aand I), so that the calk extends over the bevel Z). The cam-lever isthen drawn around, so that the die 0 is forced forward to clamp the shoerigidly between the jaws. The shoe is then calked in the usual way, andthe bevel b prevents the calk from being drawn downward out of itsnormal posit-ion.

In case the prongs of the shoe should not be level, the shoe,after beingtaken out from between the jaws, is placed upon the top of the standardB, with its calks inserted within the V-shaped recess 0, as shown indotted lines in Fig. 2. It is then hammered down to a level.

' It will be understood that the top of the standard B and the face ofthe jaw O are of sufficient width to grasp both bars of a horseshoe, sothat the shoe will be prevented from being stretched or drawn out of itsshape in calking the same.

It is well known that a stationary standard forming a jaw at its top,combined with a standard pivoted at or near its base, have been employedtogether, not only for use as a common vise, but for grasping a prong ofa horseshoe. In such case the pivoted standard will be forced forward onthe arc of a circle, and will not grasp a horseshoe on a horizontalline; hence will not allow the shoe to be closely held in its properposition, to allow the calkin g of the same so that it will be true.

Having thus fully described our invention, what we claim as new, anddesire to secure by Letters Patent, is

The combination of the standard B, with bevel b and face b, standard B,sliding die G, cam E, having flange or groove (1 and handle E, and thestrap 6, all constructed substantially as and for the purposes hereinset forth.

I11 testimony that we claim the foregoing, we have hereunto set ourhands this 6th day of February, 1875.

ERASTUS GLEASON. ROBERT HAMILTON. Witnesses:

J. TYLER POWELL, O. L. EVERT.

